Pipe sleeve



W. E. SUCHAN May 16 1933.

PIPE SLEEVE 2 Sheets-Sheet. 1

Filed Dec. 18, 1929 WWII! llliillllll Ill/l/l/l/ \N. E. SUCHAN May 16, 1933.

PIPE SLEEVE Filed Dec. 18, 1929 2 Sheets-Sheet 2 Patented May 16, 1933 WILLIAM E. SUCHAN, F EOSEDALE, NEW YORK PIPE SLEEVE Application filed December 18, 1929. Serial No. 415,095..

The present invention relates to improvements in pipe sleeves and methods of mounting same, and relates more particularly to an improved construction and method whereby steam and other pipes may be properly alined through the floors and ceilings of buildings.

An object of the invention is to provide an improved pipe sleeve which will lend itself peculiarly to setting in a cement or 19 concrete flooring construction.

' View the invention will be more fully described hereinafter and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views:

Figure 1 is a vertical sectional view taken through a fragment concrete form and showing a device embodying my improvements in .30 place before the pouring of cement or concrete;

Figure 2 is a similar view after the cement or concrete flooring has been poured;

Figure 3 is a vertical sectional view taken through a device embodying my improvements in a third stage of the method showing the heads or plugs removed and the sleeves ready to receive a pipe;

Figure 4 is a view similar to Figure 3 with a pipe and pipe joints in place; and

Figure 5 is a fragmentary vertical section through a building showing the positioning of piping through the floors and ceilings.

Referring more particularly to the drawings, 10 designates a form for the cement or concrete. Initially an opening 11 is made in the form 10 and through this opening 11 a bolt or threaded stem 12'may be projected. The stem 12 is shown as provided 0 with a beveled smooth nose 13 in advance of threads, as 14. The beveled nose 13 will facilitate the entrance of the stem .12 through the opening 11. j i 7 At or near the lower extremityof the threads 14, or at or near the base or-wider portion of the nose 13, a transverse perforation 15 is shown as provided. The nose 13 may, as shown, be flat-tipped in shape to avoid a sharp point or its sticking into the material of the form 10. Made with or secured to the upper end of the bolt 12 is a plug or head 16 shown as of agreatly increased diameter over the opening 11 and as having external threads to cooperate with internal threads 17 upon the lower end of a plpe sleeve 18. A winged or'other nut 19 .is shown as threaded upon threads 14 of the bolt 12 and a washer 20 is shown as interposed between the nut. 19 and the form boards 10.

The upper end of the pipe sleeve 18 is shown provided with internal threads 21 to receive the plug or head 22 which is shown as externally threaded. This latter plug 22 isshown as providedwith a projecting up--" per portion 23 adapted to lie above the upperend of the pipe sleeve 18 and the portion 23 of the plug 22 is shown as provided with polygonal faces to receive a Wrench or other tool whereby a rotary motion may, 804 if desired, be imparted'to the plug 22 in the act of screwing it into and out of place in the sleeve 18.

A V-shaped recess or notch 24 is shown as provided in theupper end of the plug 22. This V-shaped recess or notch 24 may be of a shape to agree substantially with the lower conical end portion of the plumb bob '25 suspended on the cord or other flexible connection 26. Instead of the V-shaped recess" or notch 24 any suitable mark may be made on the upper end of the plug 22 to cooperate with a plumb bob, as 25, for centering another sleeve with the sleeve 18. A cement or concrete flooring is indicated at 27 and plastering is indicated at 28.

In Figures 4 and 5, 29 designates a ceiling plate shown as having one end screw threaded, as at 30, to screw into threads, as 1-7, at the lower end of the tubing or sleeve" 18. A gasket may, if desired, be provided between the shoulder 31 of the ceiling plate 29 and the adjacent end of the pipe sleeve 18. If desired such gasket, if one is provided, and the shoulder 31 may not be fitted close to the unfinished ceiling but space may be afforded in which to receive plastering, as 28, so as to give a neat fit and a good appearance, and after the plastering in the space above the shoulder 31 has been finished a wrench may be engaged to the nut flange of the ceiling plate 29 so as, if desired, to bring the gasket, if one be used, and the shoulder 31 more snugly againstthe ceiling. It is to be understood, however, that the gasket, if one be employed, and the ceiling plate 29 be fitted snugly against anunfinished ceiling. T e

Whendesired the plug 22 may be removed from the upper end of the tubing or sleeve 18 and-a'floor plate, as 32, may be put in place. This floor plate 82 is shown as provided witha threaded part 33 for screwing into the threads 21'at the upper end of the tubing or sleeve 18. A gasket 35 may be provided be tween the shoulder 3 1 of the floor plate 82 and the adjacent-end of the tubing or sleeve 18. The gasket 35, if one is provided, and the shoulder 34 may not be fitted snugly against theamfinished cement or concrete flooring 2'4, but sufiicient space may be atforded to receive a finishing coat, such finishing coat being worked into the space hencath the gasket 35, if suchgask'et be provided, and the shoulder 34. Or the gasket 35.

if such gasket be provided, and the shoulderl3elmaybe fitted snugly against the unfinished cement or concrete floorin 27 screwed into the pipe sleeve and the bolt 12 inserted through the opening 11, in the cement or concrete forni 10, the pipe sleeve 18 being shown as resting upon the upper side of theiorm 10. The washer 20 has been ;'slipped over the bolt 12 and up against'the "form '10 and the nut 19 runupon the threads 14 up against the washer 2O locking the pipe ssr p in lace.

After the parts are in place, with the upper plug 22in the pipe sleeve, the cement or concrete 27 may be poured in place and about the sleeve 18. The upper plug 22 will'prevent the cement or concrete from getting into the sleeve. After the concrete 27 is set, the

nut 19 may be run off the bolt 12, the washer 20 removed, and the cement or concrete form v boards 10 pulled downwardly disengaging the samefrom the bolt 12. A pin or other inalinin'g sleeves 18 The ceiling and floor plates are s own as parts-before the pouring of the cement or concrete. "The lower'plug 16 is shown as and finally put on the finisliingcoat.

strument may then be inserted in the perforation 15 and the bolt 12 rotated whereby to screw the lower plug 16 out of the sleeve 18. When the upper plug 22 is screwed out of the sleeve the condition of the parts will be as shown in Figure 3. After the removal of the plugs 16 and 22 the pipe shown at 37 in Figures 1 and 5 may be placed through the sleeve 18..

The plumb bob 25 will, whenever desired, have been suspended into the V-shaped recess or notch 24: or above the mark which denotes the center of the plug 23, for the purpose of determining the position of an upper or lower pipe sleeve. If, for instance, the lower p pe sleeve 18 is in placeand-it is desired to determine the position of the upper pipe sleeve the plumb bob 25 will be so suspended thatits lower end will accurately fit the notch 24 or the point of the plumb b'ob will be directly above the mark which denotes the center of the plug 23 and the cord 26 will mark the proper position of the corresponding pipe sleeve for the floor above. a

By reason of the arrangement, this pipe 37 will be freely received through the vertically in the various floors of the building.-

It will beunderstood that, if desired, por- "tions of the sleeve 18 may be of heavier material than other portions of the sleeve, for instance the port1ons of the sleeve 18 which are'provide'd with screw threads may be made heavier'or thicker than other parts of the sleeve. p I

My improved construction and method of procedure constitute marked improvements over prior constructions. In. such prior con- -stru'c'tions'of cement or concrete floorings, a, tvoodenforin of floor ng is put in position,

and at the points where it isdesir'ed: that openings be left for thepassage of steam or other pipes in the finished cement or concrete flooring galvanized sleeves have been nailed to the wooden form or flooring; these galvaniaed sleeves beingprovided with outwardly ektending flanges by means of which they were nailed to the wooden form or flooring.

The ordinary method of making cement orconcrete flooring is to'pour c'einent or c'oncrete onto the wooden form or flooringjlay metal lathing, pour more cement or concrete, When the cement or concrete floor'has set thewooden form or flooring is removed from underneath. When the wooden form or flooring is pulled down the galvanized sleeves which had been nailed to this wooden form or floor may be held in place bythehardened cement or concrete, or the galvanized sleeves may be pulled down with the wooden form "or .floor to which they'have been nailed; i i,

After thewooden form or floor has been removed metal sleeves have been inserted into place within the galvanized sleeves Wheiethe galvanized sleeves have been retained by the hardened cement or concrete, or in the hole formed by a galvanized sleeve in the cement or concrete flooring where such galvanized. sleeve has been removed in pulling down the wooden form or floor.

At present while the place at which a galvanized sleeve should be nailed to the wooden form or flooring may be determined with some degree of correctness there is no method of determining such place with absolute certainty, and a galvanized sleeve may be thrown oil proper center in the operation of nailing it to the wooden form or flooring, or it may be thrown off center by the warpage of the wooden form or flooring or in the laying of the cement or concrete. If a galvanized sleeve is not truly centered until the cement or concrete flooring has hardened a metal sleeve when inserted into the galvanized sleeve or into the hole formed by the galvanized sleeve (if the galvanized sleeve should be removed with the wooden form or flooring to which it is fastened) will not be truly centered and great difliculty will be experienced in properly centering a steam or other pipe intended to be inserted through the metal sleeve. It will be readily understood that if a pipe is not properly centered when it passes through the first fioor there will be difficulty in getting it to pass easily through the metal sleeve through which it is intended to pass on the second floor, and if the metal sleeve on this second floor be not truly centered the difiiculties are increased. And there does not appear to be any practical method at present in use for in all cases determining just where a galvanized sleeve should be nailed to the wooden form or flooring for the cement or concrete of the second floor in order to assure that the hole formed by the galvanized sleeve nailed to the wooden form of the second floor will be truly registered with a like hole on the first floor. The best that can be done is to endeavor to determine by measurements just where the galvanized sleeve should be nailed to the wooden form or flooring of the second floor, and it is not easy to make the exact measurement required for that purpose, to say nothing of the risk that when the hole is formed in the concrete flooring of the second floor it will not be truly centered with respect to the center of the corresponding hole in the concrete flooring of the first floor.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof.

lVhat is claimed is:

1. In a device of the kind described, a sleeve, a removable plug mounted in the lower portion of the sleeve, a bolt extending from said plug and adapted to extend through the concrete form, said plug adapted to hold the sleeve with its adjacent end in contact with a form, means on the lower part of the bolt to detachably secure the plug and sleeve in upright position on the concrete form, and a plug detachably secured in the upper portion of the sleeve for closing the upper end of the sleeve to exclude concrete from the interior of the sleeve while pouring the concrete about the sleeve, said second plug having a coaxial centering notch in its upper surface for use in conjunction with a plumb to aline the sleeve with other like sleeves.

2. In a device of the character described, a hollow sleeve internally threaded at its 0pposite ends, a lower plug removably threaded in the lower end of the sleeve and adapted to lie flush with the same and provided with a central downwardly extending bolt for engagement through a concrete form, a clamping nut removably mounted on the lower end of the bolt for drawing said plug toward the concrete form and binding the lower end of the sleeve into contact therewith, and an upper plug threaded into the top of the sleeve for excluding concrete during the pouring operation around the sleeve, said upper plug having a centering notch disposed in its up per end coaxial with the sleeve and said lower plug for determining alignment of successively superposed sleeves.

In testimony whereof I affix my signature.

WILLIAM E.. SUOHAN. 

